Drawing-frame.



A. J. BBBER. y DRAWING FRAME..

APPLICATION FI LED FEB. 9. 19l7.

lv. Patented Jan. 29,1913.

ALLAN a. BARBER, or wooNsooKE'r, RHODE ISLAND.

DRAWING-FRAME.

Specification of LettersPatent.

Patented J an. 29, 1918.

4Application filed February 9,1917. Serial No. 147,577.

To cZZwhom t may concern.'

Beit known that l, ALLAN J. BARBER, a

citizen yof the United States, and a resident ofWVoonsocket, in the'countyA of Providence and State of Rhode lslanchhave invented a new and Improved Drawing-Frame, of which the following is a full, clear, and

l exact description.

My invention has for its object to provide a drawing frame having a body on which a pattern may. be disposed with a piece of transparent paper extending overthe Vpattern, improved means being provided for securing the transparent paper to the body and for bending the body to stretch the paper over the body Vand thepattern. y

Additional objects of the invention will appear in the following specification .in which the preferred form of the invention is disclosed.

In the drawings similar reference characters denote similar parts in all the views, in which- Figure 1 is a perspective view illustrating the invention;

Fig. 2 is an inverted plan view of the drawing frame illustrated in Fig. 1;

Fig. 3 is a side elevation of the drawing frame before the body has been bent;

Fig. 4 is a view similar to that shown in Fig. 3, but'illustrating the position of the body when it is bent to stretch the paper; and

Fig. 5 is a side elevation of a modified form of the invention.

By referring to the drawings, it will be seen that a resilient body 10 is provided, the ends 11 of which are curved downwardly, outwardly and upwardly to form transverse grooves 12. l/Vhen using the drawing frame, a pattern 13 is disposed on the body l0, and over this pattern 13 is dis` posed a piece of transparent paper 14, the ends of which extend to the transverse grooves 12. 'When this has been done, one of the rollers 15 is moved along the piece of transparent paper to one of the grooves 12, and the paper at the said groove 12 is forced into the groove by means of the said roller, the roller seating on portions 16 of the body which are out and bent upwardly at the transverse grooves 12. The other roller 15 is then moved from the first nientioned roller, over the piece of transparent paper 13 in the direction of the other groove to smooth the transparent paper, the piece of transparent paper being secured at the other groove by pressing the last mentioned roller into the said groove and against the portions 1Gof the body which serve as a seat. lBy this means the piece of transparent paper is lsecuredto the body 10 with the y,pattern 13 disposed under the piece of transparent paper. The `piece of transparent paper is then stretched over the upper face of the body 10, and Ais pressed against'the pattern 13 and the body 10 by bending the Vends of tlie'body downwardly, thereby'makping-"the upper surfaceof the body convex. 'In order to bend lthe ends 11 of the'body l downwardly, the body at one of thetransverse grooves 12 is cut to form a flange 17,

and the body at the other transverse groove is cut to form a flange 18, a tie member 19 being secured to the flange 17, and this tie member being secured to a lever 20 which is fulcrumed at 21 to the flange 18. vWhen the lever 20 is disposed substantially as shown in the dotted lines in Fig. 2 of the drawings, the body 10, which is constructed of a resilient material, is substantially flat, but when thelever 20 is moved to the position illustrated by the full lines in Fig. 2 of the drawings, the body 1() is curved as illustrated in Fig. 1 of the drawings. There is a catch 22 on the body which serves to hold the lever 20 in the position illustrated by the full lines in Fig. 2 of the drawings. y

Fig. 5 of the drawings illustrates a modified form of the invention, in which a rigid body 10n is provided, having a convex upper surface. The ends of the body 10 are bent downwardly, outwardly and upwardly, as at 12n to form transverse grooves in which the rollers 15 may seat against the ends of the piece of transparent paper 111. The sides .23 of the body 10L extend downwardly, and

the body 10a beyond the transverse grooves 12a also extend downwardly at 24C to form with the sides of the body 10a supporting members.

By stretching the paper over and tightly against the pattern in the manner described, a heavier and better quality of paper may be used than is the case where the paper is stretched vflat over the pattern.

Having thus described my invention, I claim as new and desireto secure by Letter Patent:

l. In a drawing frame, a body curved from its middle portion downwardly and in the direction of opposite ends, the body at its ends being bent downwardly, outwardly and upwardly vto form two transverse grooves, and two members for pressing a paper over the convex upper' surface of the body and the ends of the paper into the grooves.

2. ln a drawing frame, a resilient body having opposite ends bent downwardly, outwardly and upwardly to form transverse grooves, two members for pressino` a paper over the upper surface of the body and the ends of the paper' into the grooves, and means for bending the body between its ends to present a convex upper surface.

3. ln a drawing frame, a resilient body, means to secure a piece of paper to the upper surface of the body, a tie member secured to the under surface of one end of the body, a lever secured to the under surface of the other end of thebody, the tie member being secured to the lever so that a movement of the lever will draw the ends of the Y Genies of this patent may be obtained for five cents each, by addressing the "Commissioner or patente,

body in the direction of each other to curve the upper surface of the body.

el. ln a drawingframe, a resilient body, means to secure a piece of paper to the upper surface of the body, and means disposed under the body and connecting the ends of the body to draw the ends of the body in the direction of each other to give the body a convex upper surface.

5. ln a drawing frame, a resilient body having opposite ends bent' downwardly, outwardly and upwardly to form transverse grooves, two members for pressing a piece of paper against the upper surface' of the body and the ends of the paper yinto the grooves, a tie member secured to the under surface of one end of the body, a lever secured to the under surface of the other end of the body, the tie member being secured to the lever so that a movement of the lever will draw the ends-of the body in the direction of each other to curve the upper surface of the body. Y

ALLAN J. BARBER.

Washington, D. C. 

